Improved machine for crushing rock



.2 Sheets-'Shet .1. E. J. WILSON. v y

Machine for Crushing Rock.

No. 85.153. 4 Patented Dec. 22, 1868.

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E; J. WILSON.

Machine for Crushing Rock.

-. Paten'td"*Dec. 22. 1868;

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ESKRIDGE WILSON, OF FAIR PLAY, CALIFORNIA.

Letters Patent No. 85,153, zlatcd December 22, 1868; '(mtcdcted December l2, 1868.-

IMPROVED mourns: FOR cnusmne ROCK.

The Schedule referred to in these Letters Patent and making part of the same.

To all whom it may OOH-08TH.

Be it known that I,'ESKRIDGE J. Winsos, of Fair Play, in the county of Edwards, and State of California, have invented a new and. improved Machine for Crushing Rock; and I do hereby declarethat the following is a full, clear, and exact description thereof, reference being had to the accompanying drawings, making a part of this specification, in which 7 Figure 1, date 1, is a top view of the improved machine, showing the table upon which the rock is dis charged before it is fed to thc'stampers.

Figure 2, plate 1, is an elevation of one side of the improved machine, with one of the outer screens removed.

Figure 3, plate 2, is a diamctricai section through the improved machine.

Figure 4, plate 2, is a half sectional view, taken in the horizontal plane indicated by red line y in fig. 2, with certain parts removed to expose one-half of the two batteries. I

Figure 5, plate 2, is a vertical sectional view in detail, showing a portion of one of the annular batteries, and several stamps.

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to certain novel improvements on that. class of rock-crushers which are particularly designed for reducing ores, containing precious metals, to a very fine powder, preparatory to separating the metal'from its matrix.

It also relates to improvements on that class. of crushers wherein stamping-heads are employed, which are elevated, and then allowed to drop suddenly upon the rock, so as to reduce it by percussion.

The nature of my invention consists in stamps, arranged in inclined positions, and so as to move and turn within an upper and lower guide of a circularlymoving frame, such stamps belug kept down to their work by springs, in combination with an annular battery, formed with short inclined base-surfaces, and upright or nearly upright sides, the arrangement and combination being such that the striking-face of the stamps will always be square with the inclined faces of the steps forming the batteries, and thus a perfect opera tion secured, and the quartz subjected to, a pounding and grinding-action between the entire face of the stamps and the inclined faces of the steps of the bat! teries.

it also consists in a stamping-bed, with two rows of inclined step-surfaces, separated from one another by a screen, in combination with two rows of stamps, ar-

anged in inclined positions, and guided as shown.

It also consists in an angular battery, with an inclined step-surface, and with an upright or nearly upright screen or wire-work side, of less depth than the angular battery, in combination with inclined stamps, arranged in a circularly-moving frame.

It consists, further, in the arrangement of the driving-mechanism, circularly-moving frame, stampeis, stationary aminlar-grooved bed, with inclined steps, and stationary table, as hereinafter described.

The invention consists, further and finally, in arranging a series of stann'iers, in suitable guides, around an upright rotating cylinder, and over a series of steps or inclined planes, so that the rock to be crushed can be fed to the work from the inside of said cylinder, and caused to flow outwardly beneath the stampers, as rapidly as it .is'reduced to the proper degree of fineness, as 'will be hereinafter explained.

To enable others skilled in the art to understand my invention, I will describe its construction and operation. I

' In the accompanying drawings B represents a solid foundation, which may be constructed in any suitable manner, so as to aii'ord a substantial, unyielding bed.

The central portion B of this foundation rises inthe form of the frustum of a cone, and affords an elevated support fora rotary cylindrical support, D, as shown in fig. 3. i

U Surrounding the lower cylindrical portion of the cen-. tral elevation B, are two concentric annular'channels, which are formed between the annular elevations we, and the cylindrical portion of the central elevation B, as

shown in figs. 3 and 4. The bottoms of the said channels are made up of short inclined planes, a a", constructed substantially as shown in figs. 4 and 5, upon which surfaces the "rock is crushed and ground to powderby a series of stamping-heads, T T.

The inclined planes may be constructed upon short segmental sections, which can be bolted down firmly upon the horizontal bed B, concentrically to .the axisof this bed, thereby allowing any one or more of the said sections to be removed at pleasure, in-case any one or more of them should become injured by'wear.

The planes in may be made shorter and more inclined than the inclined planes c" of the outer channel. This is done for the purpose of obtaining a more violent crushin'g an'd grinding-action when the rock is received beneath the first annular row of stampers.

on top of the annular division at, and the annular elevation (1 galleries G G are'constructed, consisting of annular rails supported upon short posts erected upon said elevations a at, as shown in figs. 2, 3, and 4.

In the spaces beneath the railsG G,wire sieves b b are applied, through which the rock is carried, when reduced to proper degree of fineness.

The interior sieves b should be much coarser than the'outer sieves b, so that the rock will escape from the inner battery, before it is brought to, the requisite degree of fineness for final use, and enter the outer battery, to be therein completely powdered. A frame-work, A, is erected around the batteries,

which extends up some distance. and is made substantial and strong.

" On top of this frame A is secured a horizontal platform, which may be either rectangular or circular, and through the centre of this platform a circular hole is made, for receiving within it a circular table, E, which is of less diameter than the hole through the platform A, so as to leave a space all around it.

This table E is secured to the platform A by means of short arms E, so that it is immovable.

Beneath table E is the upright cylinder D, which is centrally secured to a vertical shaft, 0 that passes through the centre of the elevation B',.aud carries on its-lower end a large horizontal bevel-spur wheel, 0

This wheel 0* engages with a bevel-pinion, G, on the horizontal driving-shaft O, as shown in fig. 3.

The upper end of the cylinder D has a gudgeon, c, secured centrally to it, which enters a box in the table E.

It will be seen that when the shaft (2 is rotated, a rotary motion will be transmitted to the said cylinder D.

From the circumference of the cylinder D, and in horizontal planes near-its upper and lower ends, a number of arms, F F',.radiate, which arms pass through and afford supports for a cylindrical jacket, S, that encloses cylinder D, so as to leave an annular space between it and the jacket for guiding the rock down to the first battery.

These arms F F are arranged at regular distances apart, around the axis of the cylinders D S, and carry on their outwardly-projecting ends a number of concentric bearing-rings, which are arranged in horizontal planes.

The rings 9 g, which are applied to the arms F, are designed for receiving through them, and serving as upper guides for the stems j h of the stamping-heads TT'; and the rings H, which are secured to the lower series of arms F, are designed for guiding the stems jh nearer the said stampers.

The stems j of the inner annular series of stampers '1, as well as the stems h of the outer annular series of Stampers T, are arranged and guided perpendicularly to their respective steppedor inclined surfaces a a so that they will all slide and strike squarely uponsaid surfaces.

Inasmuch as there will be considerable backward strain upon the Stampers, and the lower ends of their rods or stems, I provide the rings t t with grooved anti-friction rollers, 12, between the grooved peripheries of which said Stamper-stems move. These rollers will allow the Stampers to rise freely upon their inclined planes, and to drop from one inclined plane upon another, during the rotation of the cylinders D S.

Each one of the stems of the stampers is provided with a collar, "l, near its upper end, but below its upperbearing and guide-ring, which collar is fixed'to the stem, but may be made adjustable thereon.

Between this collar '6 and the upper bearing and guide-ring, a helical spring, 3, is interposed, which spring will be compressed during the ascent of the stamper and its stem, and when the stamper passes over the highest points of the inclined planes, said spring will quickly'and forcibly thrust the stamper head down upon the rock.-

By thus employing springs upon the stems of l the stampers, the latter are not required. to be so large and heavy, and the blows made by them will be more effective upon the rock.

Said springs also serve as a means for forcibly pressing the stamp-heads upon the inclined sm'faces ,during their rubbing, sliding, and grinding-action, while in the actof ascending the inclined planes.

- The operation of the machine is as follows:

Rotary motion is imparted to the shaft 0, and transsays:

mitted to the cylinders D S, through the medium of the pinion G, spur-wheel O", and vertical shaft 0.

The cylinders D S will carry around with them the guide and supporting-rings, and their Stampers.

As the stampers are moved around, the inclined planes a a? will cause them to receive rising and dropping-motions, as above described, which will reduce the rock to a fine powder.

The rock, together with a stream of water, is fed between the two cylinders l) S, at the upper ends thereof, and passes down and escapes, from the lower end of the outer cylinder S, into the first annular battery upon the steps or inclined planes il.'

In this battery the rock is reduced to the fineness of grains of wheat, by the action of the Stampers upon it,-and as fast as the rock is thus reduced it is carried outwardly, through the sieves b, into the second battery, where it is reduced to powder, and from which it is allowed to escape, through the sieves b, into a suitable receptacle.

I do not confine myself to two annular series of inclined planes or batteries, as the work can all be accomplished in a single battery, surrounded by a sieve of proper fineness.

The table E, which is stationary, is designed for receiving the rock upon it from chutes, so that persons. standing upon this table can equally distribute the rock between the cylinders D S, and thus keep the battery uniformly supplied all around.

The stems of the sta-m'pers may be made of strong tubes, with their lower portions filled with solid rods,- thus giving strength where it is most needed, and securing lightness where the rods are not subjected to great strain.

The Stampers may be made cylindrical or angular, in cross-section, and they may have their bottom ends faced with steel.

In travelling around upon their stepped or inclined surfaces, these stampers receive intermittent rising and falling movements from said inclined surfaces, and

operate not only to strike the rock with violent blows, but they also operate as grinders in rising from the lowest to the highest points of said inclined surfaces. In this way, and by this arrangement, nearly all the power which is expended, operates to the'best advantage in the reduction of the rock to powder.

Having described my invention,

What I claim as new, and desire to secure by Letters Patent, is-- 1. One or more rows of stamps, arranged in inclined positions, and in upper and lower guides, and acted upon by springs, in combination with an annular battery or batteries, formed with inclined step-surfaces, and furnished with a screen or screens, substantially as described.

2. In combination with circularly-moving Stampers, working upon annular-stepped surfaces, providing for feeding the rock from the centre of the machine out? wardly, substantially as described.

3. The arrangement of the driving-mechanism, circularly-moving-frame and cylinder, stationary annulargrooved bed, with inclined steps at the base of the groove or grooves, and the stationary table E of stationary frame A A, substantially as and for the purpose described.

Witness my hand in matter of my application for a patent for improvement in machinery for crushing rock.

ESKRIDGE .T. WILSON.

Witnesses:

R. T. CAMPBELL, E. B. WILSON. 

